This trail is considered the most famous of the western trails. It was 2,000 miles long, and barely passable on foot. Between 1845 and 1870, more than 400,000 settlers followed this path to the West. The California Trail The Santa Fe Trail The Oregon Trail The Manifest Destiny Trail

## Step 1<br />The problem is a multiple-choice question that requires knowledge of American history, specifically the period of westward expansion. The question describes a trail that is 2,000 miles long and was used by over 400,000 settlers between 1845 and 1870. The options provided are The California Trail, The Santa Fe Trail, The Oregon Trail, and The Manifest Destiny Trail.<br /><br />## Step 2<br />The California Trail and the Santa Fe Trail were indeed significant routes for settlers moving west, but they do not match the description given in the question. The California Trail led to the gold fields of California, while the Santa Fe Trail connected Franklin, Missouri, to Santa Fe, New Mexico.<br /><br />## Step 3<br />The Manifest Destiny Trail is not a specific trail but rather a concept that encapsulates the idea of the United States' territorial expansion across the North American continent.<br /><br />## Step 4<br />The Oregon Trail, however, fits the description perfectly. It was a 2,000-mile-long trail that was used by settlers moving to the western parts of the United States, particularly Oregon. The trail was known for its harsh conditions and was often considered barely passable on foot.